Abstract:
:Phylogenetic analyses of ribosomal RNA gene sequences (rDNAs) retrieved from an Australian desert soil sample (Sturt National Park) revealed the presence of a number of clones which branched deeply from the high GC Gram-positive division line of descent. The most abundant group of these clones were related to Rubrobacter. An oligonucleotide probe was designed to have broad specificity to Rubrobacter and relatives. This probe was used to interrogate eight rDNA libraries representing four distinct land forms within the Australian arid zone. Relative abundance of Rubrobacter-relatives in these samples ranged from 2.6 to 10.2%. Clones from these libraries were selected for sequence analysis on the basis of a heteroduplex mobility assay to maximise the diversity represented in the sample. Phylogenetic analyses of these rDNA clones and Rubrobacter-related clones reported in the literature show strong support for three distinct groups. Database-searching revealed 'Rubrobacteria' were relatively abundant in a number of published soil rDNA libraries but absent from others. A PCR assay for group-1 'Rubrobacteria' was used to test for their presence in 21 environmental samples. Only marine and arid-zone soil samples gave positive PCR results. Taken together these results indicate 'Rubrobacteria' are a widespread group of variable abundance and diversity.
journal_name
FEMS Microbiol Ecoljournal_title
FEMS microbiology ecologyauthors
Holmes AJ,Bowyer J,Holley MP,O'Donoghue M,Montgomery M,Gillings MRdoi
10.1111/j.1574-6941.2000.tb00733.xsubject
Has Abstractpub_date
2000-08-01 00:00:00pages
111-120issue
2eissn
0168-6496issn
1574-6941pii
S0168-6496(00)00051-9journal_volume
33pub_type
杂志文章abstract::Iron-silica-rich low-temperature hydrothermal precipitates were collected from the CDE hydrothermal field located at the East Lau Spreading Center. Phylogenetic analysis showed that the precipitates were dominated by the members of α-proteobacteria and marine group I archaea. Ultrastructural analysis suggested the bac...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
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更新日期:2012-07-01 00:00:00
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journal_title:FEMS microbiology ecology
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
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journal_title:FEMS microbiology ecology
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journal_title:FEMS microbiology ecology
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiv115
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa002
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12019
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa193
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy142
更新日期:2018-10-01 00:00:00
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12077
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doi:10.1093/femsec/fiaa025
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pub_type: 杂志文章
doi:10.1093/femsec/fiaa202
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2000.tb00723.x
更新日期:2000-07-01 00:00:00
abstract::Vast expanses of Earth's surface are covered by ice, with microorganisms in these systems affecting local and global biogeochemical cycles. We examined microbial assemblages from habitats fed by glacial meltwater within the McMurdo Dry Valleys, Antarctica and on the west Greenland Ice Sheet (GrIS), evaluating potentia...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy090
更新日期:2018-07-01 00:00:00
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01448.x
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01083.x
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pub_type: 杂志文章
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2006.00141.x
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pub_type: 杂志文章
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更新日期:2015-11-01 00:00:00
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12180
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa255
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12406
更新日期:2014-11-01 00:00:00
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12351
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journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2010.00927.x
更新日期:2010-10-01 00:00:00
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更新日期:2020-06-01 00:00:00